various people are having problem with code of AJAX at the coahing so here is the code to help you need any more help feel free to disturb me

///code below from now. code for main index file

Enter Number

Result

// code for servlet file with .java extension.below code should be in the file name getresult.java
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class getresult extends HttpServlet
{
public void doGet(HttpServletRequest rq,HttpServletResponse rs)
{
try
{
int num=Integer.parseInt(rq.getParameter("num"));
int ss;
ss=num*num;
int fact,e,x;



fact=1;

for(e=1;e<=num;e++)
{
fact=fact*e;
}

PrintWriter pw;
pw=rs.getWriter();
pw.print(ss+","+fact);
}
catch(Exception e)
{
System.out.println(e);
}
}
}